ONPRC. Titanium foam builds Wolverine bones - health - 23 September 2010. Eat your heart out, Wolverine. The X-Men superhero won't be the only one with metal fused into his skeleton if a new titanium foam proves suitable for replacing and strengthening damaged bones. Bone implants are typically made of solid metal – usually titanium. Though well tolerated by the body, such implants are significantly stiffer than bone. This means that an implant may end up carrying a far higher load than the bone it is placed next to, according to Peter Quadbeck of the Fraunhofer Institute for Manufacturing Technology and Advanced Materials Research in Dresden, Germany. In a worst-case scenario, the decrease in stress placed on the bone means it will deteriorate, while the implant loosens and needs to be replaced.
Spongy inspiration Now Quadbeck and colleagues have created a titanium implant with a foam-like structure, inspired by the spongy nature of bone. What's more, the foam is porous, so the bone can grow around and within it, truly integrating the implant with the skeleton.
5-HT2A receptor. The mammalian 5-HT2A receptor is a subtype of the 5-HT2 receptor that belongs to the serotonin receptor family and is a G protein-coupled receptor (GPCR).[1] This is the main excitatory receptor subtype among the GPCRs for serotonin (5-HT), although 5-HT2A may also have an inhibitory effect[2] on certain areas such as the visual cortex and the orbitofrontal cortex. This receptor was first given importance as the target of serotonergic psychedelic drugs such as LSD. Later it came back to prominence because it was also found to be mediating, at least partly, the action of many antipsychotic drugs, especially the atypical ones. 5-HT2A may be a necessary receptor for the spread of the human polyoma virus called JC virus.[3] Downregulation of post-synaptic 5-HT2A receptor is an adaptive process provoked by chronic administration of SSRIs and classical antipsychotics. Deceased suicidal and otherwise depressed patients have had more 5-HT2A receptors than normal patients.
History[edit] Human Trial Suspended Animation Treatment Set to Begin at Mass General. Welcome to the OpenEEG project. About the project Many people are interested in what is called neurofeedback or EEG biofeedback training, a generic mental training method which makes the trainee consciously aware of the general activity in the brain. This method shows great potential for improving many mental capabilities and exploring consciousness. Other people want to do experiments with brain-computer interfaces or just want to have a look at their brain at work. Unfortunately, commercial EEG devices are generally too expensive to become a hobbyist tool or toy. The OpenEEG project is about making plans and software for do-it-yourself EEG devices available for free (as in GPL). It is aimed toward amateurs who would like to experiment with EEG. However, if you are a pro in any of the fields of electronics, neurofeedback, software development etc., you are of course welcome to join the mailing-list and share your wisdom.
Some regulatory business Commercial and clinical EEG devices must live up to certain standards.